Maybe you are a loser. And maybe you’re not—but if you are, you don’t have to continue in that mode. Maybe you just have a bad habit. Maybe you’re even just a collection of bad habits. Nonetheless, even if you came by your poor posture honestly—even if you were unpopular or bullied at home or in grade school28—it’s not necessarily appropriate now. Circumstances change. If you slump around, with the same bearing that characterizes a defeated lobster, people will assign you a lower status, and the old counter that you share with crustaceans, sitting at the very base of your brain, will assign
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